主题词：Microbial Community Ecology and Physiology; Wastewater Treatment and Nitrogen Removal; Methane Hydrates and Related Phenomena; Genomics and Phylogenetic Studies; Marine and coastal ecosystems; Gut microbiota and health; Mycorrhizal Fungi and Plant Interactions; Legume Nitrogen Fixing Symbiosis; Plant-Microbe Interactions and Immunity; Protist diversity and phylogeny; Soil Carbon and Nitrogen Dynamics; Microbial bioremediation and biosurfactants; Bacteriophages and microbial interactions; Polar Research and Ecology; Plant Pathogens and Fungal Diseases; Microbial Fuel Cells and Bioremediation; Environmental DNA in Biodiversity Studies; Aquatic Ecosystems and Phytoplankton Dynamics; Pharmaceutical and Antibiotic Environmental Impacts; Probiotics and Fermented Foods; Marine Biology and Ecology Research; Anaerobic Digestion and Biogas Production; Bacterial biofilms and quorum sensing; Biocrusts and Microbial Ecology; Vibrio bacteria research studies